Details

Connectivity solutions for photovoltaic power systems
LC4®-JT – Junction boxes for Thinfilm modules
LC4-JT
Photovoltaic junction boxes for thin film modules1, singlepole with connecting cables and LC4® connectors, for ribbons fed through the back plane of the module, mounting
with self-adhesive pad or by means of glue2, for potting2,
cover for automatic assembly
1. Temperature range
-40 °C/+85 °C (IEC)
-40 °C/+90 °C (UL)
(+155 °C upper limit temperature)
2. Materials
UV-resistant
Housing/cover
Contact
Crimp bushing
Adhesive pad
m-PET GF, 5VA according to UL 94
XCrNi, tin-plated
Cu, tin-plated
upon request
3. Mechanical data
Mating with
photovoltaic connectors LC4
Further data
see LC4-CP 3.../LC4-AM
Protection degree (junction box)3 IP 65
Connectable contact ribbons
Width
≤ 6.0 mm
Thickness
≤ 0.1 mm
Other dimensions upon request
Connected conductor
Photovoltaic cable, double-insulated, technical Data upon request
Section alternatively
2.5 mm2 (AWG 14) or
4.0 mm2 (AWG 12)
4. Electrical data (at Tamb 20 °C)
Contact resistance
≤ 1.5 mΩ
Rated current
10 A DC at Tamb 85 °C
Reverse current
24 A DC
4
Rated voltage
1000 V DC (IEC)/600 V DC (UL)
Modul working voltage
100 V DC
Overvoltage category4
III (8 kV)
4
Material group
IIIa (IEC)/2 (UL) (CTI ≥ 250)
Creepage distance/clearance between
live parts and touchable surfaces 21.8 mm
Pollution degree4
3
Protective class
II
5
Application class
A
Insulation resistance
> 10 GΩ
1
2
3
4
5
according to application class A of IEC 61730-1/UL 1703
appropriate materials upon request
according to IEC 60529/DIN EN 60529
according to DIN EN 60664/IEC 60664 resp. according to ANSI/UL 746A
according to IEC 61730-1
®
*a
*b
*c
*d
*e
*f
*g
*h
*i
*j
*k
option with self-adhesive pad
spacer option for fixation by means of glue
potting hole
deaerator hole
connecting cables: section 2.5 mm² (AWG 14) or 4.0 mm² (AWG 12)
left connector: LC4-CP 3... or LC4-AM
right connector: LC4-CP 3... or LC4-AM
schematic diagram of bottom side with ribbon feed-through
opening of bottom side for ribbon feed-through
direction of cable departure
outline contour of junction box
Thinfilm modules:
Wiring diagram
Single pole junction boxes,
for ribbons fed through the
back plane of the module
*e
Ø (mm2)
2.5
4.0
dimensions
A (mm) B (mm)
54.4
56.4
17.75
18.75
www.lumberg.com
Designation
LC4-JT
details upon request
03/2014
Connectivity solutions for photovoltaic power systems
LC4®-JT – Junction boxes for Thinfilm modules
LC4-JT
Photovoltaic junction boxes for thin film modules1, twopole, with connecting cables and LC4® connectors, with or
without diode, for ribbons fed through the back plane of
the module, mounting with self-adhesive pad or by means
of glue2, for potting2, cover for automatic assembly
1. Temperature range
-40 °C/+85 °C (IEC)
-40 °C/+90 °C (UL)
(+155 °C upper limit temperature)
2. Materials
UV-resistant
*l
Housing/cover
Contact
Crimp bushing
Adhesive pad
m-PET GF, 5VA according to UL 94
XCrNi, tin-plated
Cu, tin-plated
upon request
3. Mechanical data
photovoltaik connectors LC4
Mating with
Further data
see LC4-CP 3.../LC4-AM
3
Protection degree (junction box)
IP 65
Connectable contact ribbons
Width
≤ 12.0 mm
Thickness
≤ 0.1 mm
Other dimensions upon request
Connected conductor
Photovoltaic cable, double-insulated, technical Data upon request
Section alternatively
2.5 mm2 (AWG 14) or
4.0 mm2 (AWG 12)
4. Electrical data (at Tamb 20 °C)
≤ 1.5 mΩ
various diodes available, value depending on type of diode and diode
bypass test, details upon request
Rated current (UL)
10 A DC
without diode, details upon request
Reverse current
24 A DC
Rated voltage4
1000 V DC (IEC)/600 V DC (UL)
Modul working voltage
100 V DC
Overvoltage category4
III (8 kV)
Material group4
IIIa (IEC)/2 (UL) (CTI ≥ 250)
Creepage distance/clearance between
all other live parts
16.5 mm
live parts and touchable surfaces 21.8 mm
Pollution degree4
3
Protective class
II
Application class5
A
Insulation resistance
> 10 GΩ
Contact resistance
Rated current (IEC)
1
2
3
4
*l
*l
5
according to application class A of IEC 61730-1/UL 1703
appropriate materials upon request
according to IEC 60529/DIN EN 60529
according to DIN EN 60664/IEC 60664 resp. according to ANSI/UL 746A
according to IEC 61730-1
®
*a
*b
*c
*d
*e
*f
*g
*h
*i
*j
*k
*l
option with self-adhesive pad
spacer option for fixation by means of glue
potting holes
deaerator holes
connecting cables: section 2.5 mm² (AWG 14) oder 4.0 mm² (AWG 12)
left connector: LC4-CP 3... or LC4-AM
right connector: LC4-CP 3... or LC4-AM
schematic diagram of bottom side with ribbon feed-through
opening of bottom side for ribbon feed-through
direction of cable departure
outline contour of junction box
optional extra strain relief clip
Thinfilm modules:
Wiring diagram
Two-pole junction boxes,
for ribbons fed through the
back plane of the module
Designation
LC4-JT
www.lumberg.com
details upon request
03/2014